US7299944B2 - Fluid dispenser calibration system and method - Google Patents
Fluid dispenser calibration system and method Download PDFInfo
- Publication number
- US7299944B2 US7299944B2 US11/082,602 US8260205A US7299944B2 US 7299944 B2 US7299944 B2 US 7299944B2 US 8260205 A US8260205 A US 8260205A US 7299944 B2 US7299944 B2 US 7299944B2
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- 239000012530 fluid Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012937 correction Methods 0.000 claims description 19
- 235000020357 syrup Nutrition 0.000 claims description 10
- 239000006188 syrup Substances 0.000 claims description 10
- 235000013305 food Nutrition 0.000 claims 2
- 239000007788 liquid Substances 0.000 description 32
- 230000006870 function Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 235000015243 ice cream Nutrition 0.000 description 3
- 235000013353 coffee beverage Nutrition 0.000 description 2
- 235000013365 dairy product Nutrition 0.000 description 2
- 235000020166 milkshake Nutrition 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 244000240602 cacao Species 0.000 description 1
- 235000015115 caffè latte Nutrition 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
- B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
- B67D1/1202—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed
- B67D1/1204—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed for ratio control purposes
- B67D1/1231—Metering pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/0003—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid
- B67D1/0004—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid the beverage being stored in a container, e.g. bottle, cartridge, bag-in-box, bowl
- B67D1/0005—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid the beverage being stored in a container, e.g. bottle, cartridge, bag-in-box, bowl the apparatus comprising means for automatically controlling the amount to be dispensed
- B67D1/0006—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid the beverage being stored in a container, e.g. bottle, cartridge, bag-in-box, bowl the apparatus comprising means for automatically controlling the amount to be dispensed based on the timed opening of a valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/0003—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid
- B67D1/0009—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid the beverage being stored in an intermediate container connected to a supply
- B67D1/001—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid the beverage being stored in an intermediate container connected to a supply the apparatus comprising means for automatically controlling the amount to be dispensed
- B67D1/0012—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid the beverage being stored in an intermediate container connected to a supply the apparatus comprising means for automatically controlling the amount to be dispensed based on volumetric dosing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/0015—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components
- B67D1/0021—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers
- B67D1/0022—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers the apparatus comprising means for automatically controlling the amount to be dispensed
- B67D1/0027—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers the apparatus comprising means for automatically controlling the amount to be dispensed control of the amount of one component, the amount of the other components(s) being dependent on that control
- B67D1/0029—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers the apparatus comprising means for automatically controlling the amount to be dispensed control of the amount of one component, the amount of the other components(s) being dependent on that control based on volumetric dosing
- B67D1/0032—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers the apparatus comprising means for automatically controlling the amount to be dispensed control of the amount of one component, the amount of the other components(s) being dependent on that control based on volumetric dosing using flow-rate sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
- B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/0092—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume for metering by volume
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/17—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters using calibrated reservoirs
Definitions
- the present invention relates to fluid delivery systems, and more particularly to a system that can be calibrated to dispense a pre-determined volume of fluid.
- Fluid delivery systems that can dispense units of fluid having a pre-determined volume.
- Fluid delivery systems often use a motor speed to control the volume of fluid dispensed at one time.
- a peristaltic fluid delivery system includes a rotating roller that squeezes flexible tubing at selected intervals, thereby pushing generally equal units of fluid along the tubing for output.
- the motor controls the roller's rotation speed, thereby controlling the volume of fluid dispensed as the roller squeezes the flexible tube; the faster the motor speed, the greater the volume of fluid output in a given time period.
- the system When the system is initially installed, or when a user wishes to change the operating parameters (e.g., dispensed volume, dispensing speed, etc.), the system is calibrated to dispense the selected volume of fluid in each unit. Normally, calibration requires dispensing of a single unit of fluid, measuring the volume of the dispensed unit, and adjustment of the motor speed by, for example, manually adjusting a potentiometer controlling motor speed. These steps are repeated until the system dispenses a unit having the desired volume. Because current systems require manually iterative adjustments to obtain the desired fluid volume in each unit, calibration tends to be a tedious, labor-intensive process.
- the operating parameters e.g., dispensed volume, dispensing speed, etc.
- a typical milkshake machine includes two separate dispensing systems.
- the first dispensing system dispenses a syrup component.
- the second dispensing system dispenses an ice cream component.
- the syrup component and the ice cream component have different viscosities.
- known systems require manual, iterative adjustments during calibration to ensure accuracy in the amount of each component dispensed and throughout everyday use to maintain a desired ratio of syrup to ice cream.
- Similar systems are also used to dispense syrups and other liquid components used in automated coffee machines and “fountain style” soft drink dispensers. These systems also require proportional dispensing of liquid components that have different viscosities.
- the present invention is directed to a calibration system that can automatically calibrate a fluid dispensing system based on a detected flow rate.
- the invention detects an actual fluid dispensing characteristic, such as dispensing speed, and automatically adjusts the dispensing characteristic to match an ideal dispensing characteristic.
- the adjustment is conducted by a controller that controls fluid dispensing based on a function.
- the function correlates various dispensing characteristic factors, such as dispensing speed, a dispensed volume, and dispensing time.
- an actuator control automatically adjusts based on a function obtained from dispensed liquid volumes obtained at various motor speeds over a fixed time period. This information is used to compute a correction amount to correct an actual speed to an ideal speed.
- the correction amount allows the dispenser to change its operation so that a target fluid volume is dispensed within a target dispensing time, regardless of the initial actual speed.
- the actual speed may be obtained initially by detecting the time period required to obtain the target volume. This time period is then compared with the function to detect the actual speed to obtain a corresponding correction amount.
- the function used for calibration allows calibration to occur automatically by converging system operation to the ideal dispensing characteristic, without requiring a user to calibrate the system through manual iterative methods.
- an actuator control automatically adjusts based upon a function obtained from liquid dispensing times obtained at various motor speeds based upon a known reference liquid volume. A number of pulses observed during the liquid dispending time period is then compared with the function to detect the actual speed to obtain a corresponding correction amount.
- FIG. 1 is a representative block diagram illustrating a fluid dispensing system according to one embodiment of the invention
- FIG. 2 is a flow diagram illustrating a calibration method for a fluid dispensing system according to one embodiment of the invention
- FIG. 3 is a representative block diagram illustrating a fluid dispensing system including two liquid components according to another embodiment of the invention.
- FIG. 4 is a plot of a dispensing speed versus an volume of fluid dispensed during a fixed time period
- FIG. 5 is a plot of a dispensing speed correction amount versus a time period for dispensing a fixed volume of fluid at a speed corresponding to the correction amount
- FIG. 6 is a flow diagram illustrating a calibration method for a fluid dispensing system according to one embodiment of the present invention.
- FIG. 7 is a flow diagram illustrating a calibration method for a fluid dispensing system according to another embodiment of the present invention.
- FIG. 1 is a representative diagram illustrating components of a fluid dispensing system 100 according to one embodiment of the invention.
- the system 100 includes a fluid dispenser 104 (e.g., a peristaltic pump), a motor 106 or other actuator to operate the fluid dispenser 104 , and a controller 108 that allows control of the motor's 106 speed.
- the controller 108 can be any known processor, actuator control, and/or motor control device that can adjust motor or actuator speed via a generated control signal, such as a pulse width modulated signal, a variable voltage signal, etc. Changes in the motor speed will change the operation speed of the dispenser 108 .
- the controller 108 includes an actuator control 109 and a memory 110 that is able to store data on fluid dispensing times and corresponding motor speeds and/or dispensing speeds as well as functions or algorithms linking dispensing speeds, times and volumes.
- the memory 110 does not necessarily have to be part of the controller 108 ; the memory 110 can be any data storage device incorporated anywhere into the system 100 as long as it communicates with the actuator control 109 .
- Adjusting the motor speed adjusts the flow rate of the fluid dispenser 104 , thereby varying the volume of fluid output by the dispenser 104 over a given time period.
- the controller 108 allows the motor speed, and therefore the flow rate of the fluid dispenser 104 , to be varied without requiring manual iterative adjustments.
- the system 100 also includes a flow start/stop switch 111 that allows the user to start and stop fluid dispensing manually.
- FIG. 2 is a flow diagram illustrating one way in which the system of FIG. 1 is initially set up to conduct automatic calibration.
- the user starts fluid flow by activating the switch 111 (block 150 ) and allows the fluid to flow into a calibration container (block 152 ).
- a selected reference volume e.g., 1 ounce
- the user stops fluid flow via the switch 111 (block 154 ).
- the controller 108 or other processing device records the elapsed time for obtaining the reference volume (block 156 ).
- a reference flow rate can be calculated for a given motor speed (block 158 ). Calculating a reference flow rate in this way is simpler than iteratively adjusting the motor speed based on a difference between a dispensed volume and a desired volume because the reference flow rate can be obtained from a single user-controlled dispensing operation.
- the controller 108 may use a compensator to compensate for any non-linearities in a given motor's particular characteristics (e.g., the relationship between the flow rate and a control voltage applied to the motor 106 by the controller 108 , system changes, changes in the conduit carrying the fluid, conduit wear, etc.) as well as changes in the fluid itself (e.g., fluid viscosity).
- the compensator may be a circuit configuration, such as a closed-loop circuit, or be incorporated into the function executed by the controller 108 . Regardless of the specific way the compensator is incorporated into the system 100 , the compensator acts as a correction factor to maintain linearity in the motor's characteristics, maintaining accuracy in the automatic calibration.
- FIGS. 4 and 5 and Table 1 below illustrate one method of obtaining the transfer function used by the controller 108 for calibration.
- the function used by the controller 108 may be determined in ways other than the method described below. Further, the function may be a linear function or even simply a proportional factor, depending on the desired motor speed adjustment.
- fluid samples are dispensed during a specific time period, such as the target time period (e.g., 7 seconds).
- Table 1 illustrates relationships between the dispensing speed and the volume of fluid dispensed during the target time period. The data shown in Table 1 are for illustrative purposes only to explain the operation of the inventive system and are not meant to be limiting in any way.
- the actual dispensing speed and dispensed volume is then compared with the reference dispensing speed (e.g., 3.81V) and the reference dispensed volume (e.g., 1 ounce), and a speed correction amount is calculated based in the difference between the actual dispensing speed and the reference dispensing speed.
- a time period for dispensing 1 ounce at the actual dispensing speed is then calculated. For example, if the actual dispensing speed is 5.75V and 1.53 ounces were dispensed in 7 seconds at this speed, then the speed correction amount is 1.94V (that is, 1.94V needs to be subtracted from the actual speed of 5.75V to obtain the ideal speed of 3.81V). Further, as can be seen in Table 1, a dispensing speed of 5.75V will dispense 1 ounce in 4.57 seconds.
- FIG. 4 is a plot of the dispensing speed versus the volume of fluid dispensed during the fixed target time
- FIG. 5 is a plot of the correction amount versus the time needed to dispense 1 ounce at the speed corresponding to that correction amount.
- the controller 108 can automatically calculate and adjust the motor speed to produce a desired volume of fluid when the user enters a target dispensing time into the system 100 . More particularly, the initial calibration sequence shown in FIG. 2 provides the system 100 with a reference flow rate and an initial dispensing time. Because the target dispensing time is known for most applications, adjusting and calibrating the motor speed in the inventive manner ensures that the fluid dispenser 104 will be able to dispense the desired volume of fluid in the selected target dispensing time (e.g., 7 seconds).
- the initial calibration steps provide a reference flow rate that can be coordinated with the flow rate of the other material during calibration. If the flow rate of the fluid needs to be increased or decreased to coordinate with the flow rate of the other material, the reference flow rate provides an anchor point for determining the linear relationship between the flow rate and dispenser speed for that particular fluid and determining a target fluid dispensing time corresponding with the dispensing time of the other material. Based on this information, the controller 108 can determine the proper speed for outputting the target fluid volume in the target dispensing time.
- FIG. 3 is a representative block diagram illustrating a fluid dispensing system 200 including two liquid components according to another embodiment of the invention.
- the system 200 includes a first liquid dispensing system 202 and a second liquid dispensing system 302 .
- the first liquid dispensing system 202 is operable to dispense a first liquid, for example a syrup.
- the first liquid dispensing system 202 includes a first liquid dispenser 204 , a first actuator 206 , for example a motor or any other actuator that could operate the first liquid dispenser 204 , and a first controller 208 that allows control of the first actuator's 206 speed.
- the first controller 208 can be any known processor, actuator control and/or motor control device that is operable to adjust actuator or motor speed via a generated control signal, as discussed in FIG. 1 .
- the second liquid dispensing system 302 is operable to dispense a second liquid, for example a dairy product.
- the second liquid dispensing system 302 includes a second liquid dispenser 304 , a second actuator 306 , for example a motor or any other actuator that could operate the second liquid dispenser 304 , and a second controller 308 that allows control of the second actuator's 306 speed.
- the second controller 308 can be any known processor, actuator control and/or motor control device that is operable to adjust actuator or motor speed via a generated control signal, as discussed in FIG. 1 .
- the first controller 208 includes a first actuator control 209 and a first memory 210 .
- the second controller 308 includes a second actuator control 309 and a second memory 310 .
- the first controller 208 and the second controller 308 are operable to store data on fluid dispensing times and corresponding motor speeds and/or dispensing speeds as well as functions or algorithms linking dispensing speeds, times and volumes.
- Adjusting the motor speed of the first liquid dispensing system 202 and the second liquid dispensing system 302 adjusts the flow rates of the first liquid dispenser 204 and the second liquid dispenser 304 , thereby varying the volume of fluid output by each of the first liquid dispenser 204 and the second liquid dispenser 304 over a given period of time.
- the first controller 208 allows a first motor speed, and therefore a first flow rate of the first fluid dispenser 204 , to be varied without requiring manual iterative adjustment.
- the second controller 308 allows a second motor speed, and therefore a second flow rate of the second fluid dispenser 304 , to be varied without requiring manual iterative adjustment.
- the syrup and dairy product are combined to make a beverage, for example, a coffee product, such as a café latte or a hot cocoa.
- system 200 also includes a first flow start/stop switch 211 and a second flow start/stop switch 311 that allows the user to start and stop fluid dispensing manually.
- the controller 108 uses the function generated according to FIGS. 4 and 5 to determine how much the motor speed needs to be adjusted to dispense the reference volume in the target time. For example, if during calibration process shown in FIG. 2 , it took 4.57 seconds to dispense 1 ounce of fluid, it indicates that the dispenser speed is 5.75V, 1.94V higher than the ideal speed of 3.81V. The controller 108 will then reduce the dispenser speed by 1.94V automatically so that 1 ounce will be dispensed during the target time of 7 seconds. The controller 108 will therefore cause the motor 106 to converge to the ideal speed, dispensing the target volume during the target time, regardless of the initial speed of the motor during the calibration step of FIG. 2 .
- the system 100 can detect the amount of adjustment needed based on the time it takes to dispense a fixed volume of fluid during the initial calibration process ( FIG. 2 ). For example, given a selected target dispensing time, the controller 108 can calculate the difference between the target time and the reference time and then vary the motor speed by an amount proportional to the size of the calculated difference.
- the specific proportional values depends on the specific characteristics of the motor, fluids, and/or conduits being used; those of ordinary skill in the art will be able to determine the correct scaling factor for a given system via trial and error without undue experimentation.
- the controller 108 can automatically detect how far the dispensing speed, and therefore the motor speed, is off from the target speed and adjust the motor speed accordingly.
- the motor speed is able to automatically adjust itself based on the transfer function reflecting the relationship between motor speed and dispensing time for a given fluid volume.
- the transfer functions used by the controller 108 links dispenser speed, dispensing time, and dispensed volume, those of ordinary skill in the art will be able to determine other ways in which the transfer function can be used for automatic calibration of fluid dispensers 104 (e.g., calibrating to a fixed dispensed volume, a specific motor speed, etc. as well as to a target dispensing time) without departing from the scope of the invention.
- the functions or algorithms stored in the controller 108 allows automatic adjustment of the motor speed to meet any desired performance characteristics based on a single reference flow rate obtained during an initial calibration step ( FIG. 2 ).
- a motor speed is automatically and continuously calibrated using a series of equations based upon a volume of liquid, for example a syrup, dispensed during an initial calibration Vol c and a calibration motor voltage based upon a liquid viscosity V c .
- the initial motor speed V i may also be derived from a data table.
- the initial motor speed V i is used to set the motor speed V n .
- a time between motor encoder pulses t ref is measured.
- V n+1 [( t s /2 P i )( V n /t n )]
- t s is a pre-determined standard time.
- An updated motor speed estimation V n+1 then replaces the motor speed V n and the process repeats, automatically calibrating the motor speed V n based upon the updated motor speed estimation V n+1 .
- a motor speed is automatically and continuously calibrated using a series of equations based upon a time required to dispense a known reference volume of a liquid, for example a syrup, into a calibration cup.
- the initial motor speed estimation V i is used to set the motor speed V n .
- V n+1 P′ i ( V n /P′ n ⁇ 1 )
- An updated motor speed estimation V n+1 then replaces the motor speed V n and the process repeats, automatically calibrating the motor speed V n based upon the updated motor speed estimation V n+1 .
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Dispensing Beverages (AREA)
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Abstract
Description
TABLE 1 | |||
Correction | |||
Amount | |||
Computed | Computed | ||
to Correct | Time to | ||
Dispenser | Measured | the Speed to | Dispense One |
Speed | Volume | Reference | Ounce at this |
(input V) | (ounces) | Speed | speed |
6.00 | 1⅝ | 2.19 | 4.31 |
5.75 | 1 17/32 | 1.94 | 4.57 |
5.50 | 1 15/32 | 1.69 | 4.77 |
5.25 | 1⅜ | 1.44 | 5.09 |
5.00 | 1 5/16 | 1.19 | 5.33 |
4.75 | 1 7/32 | 0.94 | 5.74 |
4.50 | 1 3/16 | 0.69 | 5.89 |
4.25 | 1 3/32 | 0.44 | 6.40 |
4.00 | 1 1/16 | 0.19 | 6.59 |
3.75 | 31/32 | −0.06 | 7.23 |
3.50 | 15/16 | −0.31 | 7.47 |
V i =P i(V c /P c)
P i =Vol s(Pc/Vol c)
t n =Σt ref /N pulses
V n+1=[(t s/2P i)(V n /t n)]
V i =t s(V c /t c)
P′ n =ΣP′ ref /N subgroups
V n+1 =P′ i(V n /P′ n−1)
Claims (20)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/082,602 US7299944B2 (en) | 2002-11-21 | 2005-03-17 | Fluid dispenser calibration system and method |
EP06737279A EP1861332A4 (en) | 2005-03-17 | 2006-03-07 | Fluid dispenser calibration system and method |
AU2006227910A AU2006227910A1 (en) | 2005-03-17 | 2006-03-07 | Fluid dispenser calibration system and method |
PCT/US2006/008089 WO2006101722A2 (en) | 2005-03-17 | 2006-03-07 | Fluid dispenser calibration system and method |
KR1020077022510A KR20070116845A (en) | 2005-03-17 | 2006-03-07 | Fluid dispenser calibration system and method |
RU2007138434/13A RU2007138434A (en) | 2005-03-17 | 2006-03-07 | LIQUID DISPENSER CALIBRATION SYSTEM, LIQUID DISPENSING SYSTEM AND CALIBRATION METHOD |
CN2006800172694A CN101180236B (en) | 2005-03-17 | 2006-03-07 | Fluid dispenser calibration system and method |
HK08111973.0A HK1120014A1 (en) | 2005-03-17 | 2008-10-30 | Fluid dispenser calibration system and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/296,186 US6986441B2 (en) | 2002-10-23 | 2002-10-23 | Fluid dispenser calibration system and method |
US11/082,602 US7299944B2 (en) | 2002-11-21 | 2005-03-17 | Fluid dispenser calibration system and method |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/296,186 Continuation-In-Part US6986441B2 (en) | 2002-10-23 | 2002-10-23 | Fluid dispenser calibration system and method |
Publications (2)
Publication Number | Publication Date |
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US20050161469A1 US20050161469A1 (en) | 2005-07-28 |
US7299944B2 true US7299944B2 (en) | 2007-11-27 |
Family
ID=37024304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/082,602 Expired - Lifetime US7299944B2 (en) | 2002-11-21 | 2005-03-17 | Fluid dispenser calibration system and method |
Country Status (8)
Country | Link |
---|---|
US (1) | US7299944B2 (en) |
EP (1) | EP1861332A4 (en) |
KR (1) | KR20070116845A (en) |
CN (1) | CN101180236B (en) |
AU (1) | AU2006227910A1 (en) |
HK (1) | HK1120014A1 (en) |
RU (1) | RU2007138434A (en) |
WO (1) | WO2006101722A2 (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
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US20070207040A1 (en) * | 2006-03-06 | 2007-09-06 | The Coca-Cola Company | Pump System with Calibration Curve |
US20080209921A1 (en) * | 2007-03-02 | 2008-09-04 | Dover Systems, Inc. | Refrigeration system |
US20100116844A1 (en) * | 2008-11-11 | 2010-05-13 | Robert Bissinger | Enhanced Beverage Dispenser |
US20130026197A1 (en) * | 2010-01-27 | 2013-01-31 | Robatech Ag | Application head for dispensing a free-flowing medium and application device for dispensing a free-flowing medium |
US20130112624A1 (en) * | 2010-07-07 | 2013-05-09 | Ge Healthcare Bio-Sciences Ab | Fluid mixing in a disposable fluid processing system |
US8514067B2 (en) | 2011-08-16 | 2013-08-20 | Elwha Llc | Systematic distillation of status data relating to regimen compliance |
US20150266050A1 (en) * | 2014-03-24 | 2015-09-24 | P.C. Cox Limited | Dispenser |
US20160221024A1 (en) * | 2013-09-16 | 2016-08-04 | Dürr Systems GmbH | Application system and corresponding application method |
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Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4137913A (en) * | 1975-02-28 | 1979-02-06 | Ivac Corporation | Fluid flow control system |
US4392849A (en) * | 1981-07-27 | 1983-07-12 | The Cleveland Clinic Foundation | Infusion pump controller |
US4468219A (en) * | 1983-12-20 | 1984-08-28 | International Business Machines Corporation | Pump flow rate compensation system |
US4715786A (en) * | 1984-12-14 | 1987-12-29 | Cole-Parmer Instrument Company | Control method and apparatus for peristaltic fluid pump |
US4820281A (en) * | 1987-05-21 | 1989-04-11 | Ivy Medical, Inc. | Drop volume measurement system |
US4910682A (en) | 1984-12-14 | 1990-03-20 | Cole-Parmer Instrument Company | Method of calibrating and determining the rotational and fluid delivery velocities of a peristaltic fluid pump |
US5024347A (en) | 1988-06-08 | 1991-06-18 | Baldwin Brian E | Adjustably controllable accuracy-enhancing pump arrangement and method |
US5947692A (en) | 1997-10-30 | 1999-09-07 | Baxter International Inc. | Peristaltic pump controller with scale factor that varies as a step function of pump inlet pressure |
US6675988B2 (en) | 1998-02-27 | 2004-01-13 | Fluid Research Corporation | Apparatus for dispensing liquids and solids |
US20040104242A1 (en) | 2002-10-23 | 2004-06-03 | Scordato Joseph John | Fluid dispenser calibration system and method |
US7114517B2 (en) * | 2001-11-26 | 2006-10-03 | Sund Wesley E | High purity fluid delivery system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4979641A (en) * | 1987-08-19 | 1990-12-25 | Turner Charles S | Computerized beer dispensing system |
IT1306262B1 (en) * | 1998-07-08 | 2001-06-04 | Gd Spa | PRINTING UNIT |
BE1012720A3 (en) * | 1999-06-21 | 2001-02-06 | Tokheim Services France | Method for retrieving vapours emitted during liquid dispensing |
US6606917B2 (en) * | 2001-11-26 | 2003-08-19 | Emerson Electric Co. | High purity coriolis mass flow controller |
-
2005
- 2005-03-17 US US11/082,602 patent/US7299944B2/en not_active Expired - Lifetime
-
2006
- 2006-03-07 AU AU2006227910A patent/AU2006227910A1/en not_active Abandoned
- 2006-03-07 EP EP06737279A patent/EP1861332A4/en not_active Withdrawn
- 2006-03-07 CN CN2006800172694A patent/CN101180236B/en active Active
- 2006-03-07 WO PCT/US2006/008089 patent/WO2006101722A2/en active Application Filing
- 2006-03-07 RU RU2007138434/13A patent/RU2007138434A/en not_active Application Discontinuation
- 2006-03-07 KR KR1020077022510A patent/KR20070116845A/en not_active Application Discontinuation
-
2008
- 2008-10-30 HK HK08111973.0A patent/HK1120014A1/en not_active IP Right Cessation
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4137913A (en) * | 1975-02-28 | 1979-02-06 | Ivac Corporation | Fluid flow control system |
US4392849A (en) * | 1981-07-27 | 1983-07-12 | The Cleveland Clinic Foundation | Infusion pump controller |
US4468219A (en) * | 1983-12-20 | 1984-08-28 | International Business Machines Corporation | Pump flow rate compensation system |
US4715786A (en) * | 1984-12-14 | 1987-12-29 | Cole-Parmer Instrument Company | Control method and apparatus for peristaltic fluid pump |
US4910682A (en) | 1984-12-14 | 1990-03-20 | Cole-Parmer Instrument Company | Method of calibrating and determining the rotational and fluid delivery velocities of a peristaltic fluid pump |
US4820281A (en) * | 1987-05-21 | 1989-04-11 | Ivy Medical, Inc. | Drop volume measurement system |
US5024347A (en) | 1988-06-08 | 1991-06-18 | Baldwin Brian E | Adjustably controllable accuracy-enhancing pump arrangement and method |
US5024347B1 (en) | 1988-06-08 | 1995-05-23 | Baxa Corp | Adjustably controllable accuracy-enhancing pump arrangement and method |
US5947692A (en) | 1997-10-30 | 1999-09-07 | Baxter International Inc. | Peristaltic pump controller with scale factor that varies as a step function of pump inlet pressure |
US6675988B2 (en) | 1998-02-27 | 2004-01-13 | Fluid Research Corporation | Apparatus for dispensing liquids and solids |
US7114517B2 (en) * | 2001-11-26 | 2006-10-03 | Sund Wesley E | High purity fluid delivery system |
US20040104242A1 (en) | 2002-10-23 | 2004-06-03 | Scordato Joseph John | Fluid dispenser calibration system and method |
US6986441B2 (en) * | 2002-10-23 | 2006-01-17 | Carrier Commercial Refrigeration, Inc. | Fluid dispenser calibration system and method |
Non-Patent Citations (2)
Title |
---|
International Search Report and Written Opinion dated Sep. 24, 2007. |
PCT International Search Report, dated Jun. 24, 2003. |
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US20070207040A1 (en) * | 2006-03-06 | 2007-09-06 | The Coca-Cola Company | Pump System with Calibration Curve |
US11661329B2 (en) | 2006-03-06 | 2023-05-30 | Deka Products Limited Partnership | System and method for generating a drive signal |
US11429120B2 (en) | 2006-03-06 | 2022-08-30 | Deka Products Limited Partnership | Product dispensing system |
US11975960B2 (en) | 2006-03-06 | 2024-05-07 | Deka Products Limited Partnership | System and method for generating a drive signal |
US20080209921A1 (en) * | 2007-03-02 | 2008-09-04 | Dover Systems, Inc. | Refrigeration system |
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US20130026197A1 (en) * | 2010-01-27 | 2013-01-31 | Robatech Ag | Application head for dispensing a free-flowing medium and application device for dispensing a free-flowing medium |
US20130026198A1 (en) * | 2010-01-27 | 2013-01-31 | Robatech Ag | Electric application head for dispensing a free-flowing medium, and device comprising such an electric application head |
US10589239B2 (en) * | 2010-07-07 | 2020-03-17 | Ge Healthcare Bio-Sciences Ab | Fluid mixing in a disposable fluid processing system |
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US8723640B2 (en) | 2011-08-16 | 2014-05-13 | Elwha Llc | Distillation of status data relating to regimen compliance responsive to the presence and absence of wireless signals relating to one or more threshold frequencies |
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US8514067B2 (en) | 2011-08-16 | 2013-08-20 | Elwha Llc | Systematic distillation of status data relating to regimen compliance |
US10076766B2 (en) * | 2013-09-16 | 2018-09-18 | Durr Systems, Gmbh | Application system and corresponding application method |
US20160221024A1 (en) * | 2013-09-16 | 2016-08-04 | Dürr Systems GmbH | Application system and corresponding application method |
US20150266050A1 (en) * | 2014-03-24 | 2015-09-24 | P.C. Cox Limited | Dispenser |
US10265721B2 (en) * | 2014-03-24 | 2019-04-23 | Sulzer Mixpac Ag | Dispenser |
US10493412B2 (en) | 2015-05-12 | 2019-12-03 | Blendtec, Inc. | Blending systems and methods with blade assembly dampening |
US9894912B2 (en) | 2015-06-04 | 2018-02-20 | Blendtec, Inc. | Chilled product post-processing apparatus |
US10785993B2 (en) | 2016-05-31 | 2020-09-29 | Taylor Commercial Foodservice, Llc | Valve assembly for a food product container of a food product dispensing machine |
US11286152B2 (en) | 2018-05-02 | 2022-03-29 | Taylor Commercial Foodservice, Llc | Door and baffle interface assembly for frozen dessert machines |
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US10894708B2 (en) | 2018-05-02 | 2021-01-19 | Taylor Commercial Foodservice, Llc | Door and baffle interface assembly for frozen dessert machines |
US11497228B2 (en) | 2019-01-16 | 2022-11-15 | Taylor Commercial Foodservice, Llc | Microchannel freezing cylinder assembly |
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Also Published As
Publication number | Publication date |
---|---|
CN101180236B (en) | 2013-04-24 |
WO2006101722A3 (en) | 2007-11-15 |
US20050161469A1 (en) | 2005-07-28 |
WO2006101722A2 (en) | 2006-09-28 |
KR20070116845A (en) | 2007-12-11 |
AU2006227910A1 (en) | 2006-09-28 |
RU2007138434A (en) | 2009-04-27 |
EP1861332A4 (en) | 2011-01-05 |
EP1861332A2 (en) | 2007-12-05 |
HK1120014A1 (en) | 2009-03-20 |
CN101180236A (en) | 2008-05-14 |
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